[1] The movie was based on the famous Arabic love story of Laila and Kais.

Laila's house is surrounded by armed guards and she cannot venture out to meet Kais.

Laila's father reads the message and becomes furious to see the audacity of Kais.

After a number of days, Kais's health improves and he leaves his home in search of Laila.

The film had a long and troubled production history with shooting starting in 1963 with Guru Dutt as Kais and Nimmi as Laila.

However Guru Dutt's sudden death in 1964 left the film incomplete and it was shelved.

Then, Asif recast Sanjeev Kumar as Kais and resumed production of the film in 1970.

Unfortunately, the director K. Asif died on 9 March 1971 at the age of 48/49 and the film was once again left incomplete.

In a few months, they managed to salvage some usable portions of the incomplete film from three different studios and pieced them together.

[2][3] The songs were composed by music director Naushad Ali, Dialogues by Wajahat Mirza and the lyrics were written by lyricist Khumar Barabankvi.